[Diagnostic and therapy-assessing studies of gingival capillary function by photoplethysmography (preliminary report)]

In the sense of relation pathology, the local peripheral blood supply plays a decisive role also in periodontal diseases. Thus, the differentiation of local circulatory disturbances is of great importance in diagnosis and early detection as well as in therapeutical decisions. Photoplethysmography is well suited for this purpose, especially in evaluating the curves by determining the time of inclination and the plateau index (if necessary, with resort to the nitrangin test). The indicated method also permits to assess the success of therapeutical measures.